package com.mmall.other.example.Iterable;/**
 * Created with IDEA
 * Author : wangfei
 * Date :  2019/10/23
 * Time : 11:11
 * Describe :
 */

import java.io.IOException;
import java.util.*;

/**
 * @ClassName ArrayListAndVectorExample1
 * @Describe :
 * @Author : wangfei 
 * @Date :  2019/10/23 11:11
 */
public class ArrayListAndVectorExample1 {

	public static void main(String[] args) {
		//线程不安全   数据增长  扩容增加原来长度的一半
		ArrayList arrayList = new ArrayList();

		//线程安全的   扩容 一倍
		Vector vector = new Vector();


		Stack stack = new Stack();

		WeakHashMap weakHashMap = new WeakHashMap();

//		LinkedHashMap
	}

}
